Volcano earthquake report for Sunday, 18 October 2026

Quakes detected near: Almolonga (1 quake mag 3.2), Apaneca Range (2 quakes between mag 1.8-2.0), Atitlán (1 quake mag 4.1), Balut (3 quakes between mag 1.8-2.4), Bardarbunga (2 quakes between mag 0.0-1.6), Brennisteinsfjöll (2 quakes between mag 0.7-1.1)
Cagua (1 quake mag 1.9), Campi Flegrei (Phlegrean Fields) (16 quakes between mag 0.1-2.5), Chingo (1 quake mag 1.2), Clear Lake (20 quakes between mag 0.4-2.3), Etna (23 quakes between mag 0.7-3.1), Eyafjallajökull (1 quake mag 1.6), Flores (31 quakes between mag 1.0-3.8), Iliamna (3 quakes between mag 0.4-1.3), Irazu (1 quake mag 1.8), Kilauea (9 quakes between mag 1.0-2.8), Kolumbo (4 quakes between mag 1.5-2.0), Kuchinoshima (1 quake mag 2.5), Loihi (2 quakes between mag 1.9-2.1), Maunaloa (1 quake mag 1.7), Methana (1 quake mag 2.2), Ngauruhoe (1 quake mag 1.2), Okataina (Tarawera) (1 quake mag 2.2), Pavlof (1 quake mag 1.1), Piton de la Fournaise (1 quake mag 1.0), Pocdol Mountains (1 quake mag 2.1), Redoubt (1 quake mag 1.0), Rincón de la Vieja (1 quake mag 1.8), Salton Buttes (1 quake mag 1.1), Santiaguito (2 quakes between mag 2.3-3.8), Turrialba (1 quake mag 2.0), Wrangell (2 quakes between mag 1.0-1.4) (updated 12h50)\n\nNote: Earthquakes within 20 km from and at depths less than 50 km under active volcanoes are reported. The list is not complete because many volcanoes are not monitored and/or seismic data in high resolution is not available publicly.\n
Volcanoes with recent earthquakes above magnitude 2 or more than 10 quakes are listed below:

Almolonga volcano (Guatemala): magnitude 3.2 earthquake

A magnitude 3.2 earthquake occurred at the volcano 11 hours ago. The quake, which might be volcanic in origin, was located at a depth of 13.70 km depth at 7 km distance SSE from the volcano.
Earthquake details:
3.2 quake 12 km south of Quetzaltenango, Departamento de Quetzaltenango, Guatemala, Oct 17, 2026 07:28 pm (GMT -6) (7 km SSE)
All earthquakes at Almolonga
Almolonga is a Guatemalan stratovolcano dominated by lava domes, including historically active Cerro Quemado beside Quetzaltenango. Its last known eruption, in 1818, produced a 2.5-km-long blocky lava flow.

Atitlán volcano (Guatemala): magnitude 4.1 earthquake

A magnitude 4.1 earthquake occurred at the volcano 8 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 14 km distance SW from the volcano.
Earthquake details:
4.1 quake 10.1 km southeast of Chicacao, Departamento de Suchitepequez, Guatemala, Oct 17, 2026 10:59 pm (GMT -6) (14 km SW)
All earthquakes at Atitlán
Atitlán is a 3,535 m stratovolcano beside Lake Atitlán in Guatemala. Its eruption record extends from geological evidence around 1020 BCE to a damaging VEI 3 eruption in 1853.

Balut volcano (Mindanao): 3 earthquakes up to magnitude 2.4

3 earthquakes occurred near (under) the volcano during 6 hours, the last being recorded quake 14 hours ago. Hypocenter depths ranged between 25.00 and 21.00 km.
Earthquake details:
2.4 quake Province of Davao del Sur, Davao, Philippines, Oct 18, 2026 07:16 am (GMT +8) (3 km SE)
2.0 quake Celebes Sea, 22 km southwest of Sarangani Island, Philippines, Oct 18, 2026 01:40 am (GMT +8) (11 km SW)
1.8 quake Celebes Sea, 28 km west of Sarangani Island, Philippines, Oct 18, 2026 02:05 am (GMT +8) (17 km W)
All earthquakes at Balut
Balut is an 840 m island stratovolcano south of Mindanao whose last known eruption occurred between about 2 million and 11,700 years ago. Hot springs and thermally altered ground occur on its western and southwestern flanks.

Campi Flegrei (Phlegrean Fields) volcano (Italy): 16 earthquakes up to magnitude 2.5

Possible earthquake swarm: 16 earthquakes occurred near (under) the volcano during 17 hours, the last being recorded quake 49 minutes ago. Hypocenter depths ranged between 4.89 and 0.03 km.
Earthquake details: (only 5 largest)
2.5 quake 10.9 km west of Naples, Napoli, Campania, Italy, Oct 18, 2026 05:24 am (GMT +2) (1 km N)
0.9 quake 5.4 km southeast of Pozzuoli, Napoli, Campania, Italy, Oct 18, 2026 04:56 am (GMT +2) (3 km SSW)
0.8 quake 3.4 km east of Pozzuoli, Napoli, Campania, Italy, Oct 18, 2026 04:57 am (GMT +2) (1 km NNW)
0.7 quake 4.3 km east of Pozzuoli, Napoli, Campania, Italy, Oct 18, 2026 05:43 am (GMT +2) (1 km NNE)
0.7 quake Tyrrhenian Sea, 20 km northeast of Isola d'Ischia Island, Italy, Oct 17, 2026 08:54 pm (GMT +2) (3 km SSW)
All earthquakes at Campi Flegrei (Phlegrean Fields)
Campi Flegrei is a 13-km-wide volcanic caldera encompassing part of Naples and the Gulf of Pozzuoli. Its last known eruption formed the Monte Nuovo cone in 1538.

Clear Lake volcano (California): 20 earthquakes up to magnitude 2.3

Possible earthquake swarm: 20 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 1 hour 57 minutes ago. Hypocenter depths ranged between 9.92 and 0.33 km.
Earthquake details: (only 5 largest)
2.3 quake Sonoma County, 14 mi southwest of Clearlake, Lake County, California, United States, Oct 18, 2026 03:34 am (GMT -7) (16 km SSW)
1.6 quake Sonoma County, 14 mi southwest of Clearlake, Lake County, California, United States, Oct 18, 2026 03:29 am (GMT -7) (16 km SSW)
1.3 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, Oct 18, 2026 03:35 am (GMT -7) (16 km SSW)
1.1 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Oct 17, 2026 07:35 pm (GMT -7) (17 km S)
1.1 quake 25 mi north of Santa Rosa, Sonoma County, California, United States, Oct 17, 2026 03:15 pm (GMT -7) (19 km S)
All earthquakes at Clear Lake

Etna volcano (Italy): 23 earthquakes up to magnitude 3.1

Possible earthquake swarm: 23 earthquakes occurred near (under) the volcano during 10 hours, the last being recorded quake 28 minutes ago. Hypocenter depths ranged between 10.00 and 3.66 km.
Earthquake details: (only 5 largest)
3.1 quake 9.5 km northeast of Adrano, Province of Catania, Sicily, Italy, Oct 18, 2026 06:20 am (GMT +2) (10 km W)
2.4 quake 22 km north of Catania, Province of Catania, Sicily, Italy, Oct 18, 2026 12:02 pm (GMT +2) (8 km S)
2.4 quake 29 km northwest of Acireale, Province of Catania, Sicily, Italy, Oct 18, 2026 04:27 am (GMT +2) (10 km W)
2.1 quake 9.1 km northeast of Adrano, Province of Catania, Sicily, Italy, Oct 18, 2026 04:22 am (GMT +2) (11 km W)
1.9 quake 8.9 km northeast of Adrano, Province of Catania, Sicily, Italy, Oct 18, 2026 01:07 pm (GMT +2) (11 km W)
All earthquakes at Etna
Etna is a frequently active stratovolcano in Sicily with documented eruptions dating to about 1500 BCE. Its activity ranges from summit explosions and lava fountains to flank eruptions with extensive lava flows.

Flores volcano (Guatemala): 31 earthquakes up to magnitude 3.8

Possible earthquake swarm: 31 earthquakes occurred near (under) the volcano during 17 hours, the last being recorded quake 7 hours ago. Hypocenter depths ranged between 8.00 and 1.20 km.
Earthquake details: (only 5 largest)
3.8 quake 24 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Oct 17, 2026 07:30 am (GMT -6) (14 km WNW)
3.0 quake 25 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Oct 17, 2026 07:41 am (GMT -6) (13 km WNW)
2.6 quake 23 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Oct 17, 2026 07:39 am (GMT -6) (14 km WNW)
2.0 quake 24 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Oct 17, 2026 07:06 am (GMT -6) (14 km WNW)
1.9 quake 23 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Oct 17, 2026 08:18 am (GMT -6) (15 km WNW)
All earthquakes at Flores
Flores, also known as Volcán Amayo, is a volcanic field about 10 km west of Jutiapa in southeastern Guatemala. Its last eruption is undated, and none are known from approximately the past 11,700 years.

Kilauea volcano (Hawai'i (Big Island)): 9 earthquakes up to magnitude 2.8

9 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 27.66 and 0.00 km.
Earthquake details: (only 5 largest)
2.8 quake 37 mi southwest of Hilo, Hawaii County, Hawaii, United States, Oct 17, 2026 09:23 am (GMT -10) (19 km SSW)
2.2 quake 26 mi southwest of Hilo, Hawaii County, Hawaii, United States, Oct 17, 2026 08:51 am (GMT -10) (3 km S)
2.2 quake 25 mi southwest of Hilo, Hawaii County, Hawaii, United States, Oct 17, 2026 07:31 am (GMT -10) (2 km SE)
2.1 quake 30 mi southwest of Hilo, Hawaii County, Hawaii, United States, Oct 17, 2026 10:55 pm (GMT -10) (9 km WSW)
2.0 quake 29 mi south of Hilo, Hawaii County, Hawaii, United States, Oct 17, 2026 04:19 am (GMT -10) (13 km SE)
All earthquakes at Kilauea

Kuchinoshima volcano (Ryukyu Islands): magnitude 2.5 earthquake

A magnitude 2.5 earthquake occurred at the volcano 32 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 2.40 km depth at 4 km distance NE from the volcano.
Earthquake details:
2.5 quake East China Sea, Kagoshima-ken, 46 km northeast of Suwanose-jima Island, Japan, Oct 18, 2026 09:18 pm (GMT +9) (4 km NE)
All earthquakes at Kuchinoshima
Kuchinoshima is a 628 m-high volcanic island in Japan’s northern Ryukyu Islands, formed by stratovolcanoes and numerous lava domes. Four radiocarbon-dated eruptive periods are listed, ending with an eruption centered on 1190 CE.

Loihi volcano (Hawai'i (Big Island)): 2 earthquakes up to magnitude 2.1

2 earthquakes occurred near (under) the volcano during 54 minutes, the last being recorded quake 17 hours ago. Hypocenter depths ranged between 30.06 and 13.91 km.
Earthquake details:
2.1 quake North Pacific Ocean, 41 mi southeast of of Hawai‘i Island, Hawaii County, Hawaii, United States, Oct 17, 2026 09:20 am (GMT -10) (17 km NW)
1.9 quake North Pacific Ocean, 47 mi southeast of of Hawai‘i Island, Hawaii County, Hawaii, United States, Oct 17, 2026 08:26 am (GMT -10) (8 km WNW)
All earthquakes at Loihi
Loihi, now named Kamaʻehuakanaloa, is a submarine shield volcano about 35 km southeast of Hawaiʻi. Its last confirmed eruption was in 1996, while later unrest has consisted of earthquake swarms without confirmed eruptions.

Methana volcano (Greece): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 7 hours ago. The quake, which might be volcanic in origin, was located at a depth of 29.97 km depth at 17 km distance ESE from the volcano.
Earthquake details:
2.2 quake Aegean Sea, 4.1 km northeast of Nisos Poros Island, Greece, Oct 18, 2026 09:10 am (GMT +3) (17 km ESE)
All earthquakes at Methana
Methana is a lava-dome complex forming a peninsula in Greece’s Saronic Gulf. An eruption around 258 BCE built the Kameno Vouno dome and produced a lava flow that extended about 500 m beyond the coast.

Okataina (Tarawera) volcano (New Zealand): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 4 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.00 km depth at 12 km distance E from the volcano.
Earthquake details:
2.2 quake 35 km east of Rotorua, Bay of Plenty, New Zealand, Oct 18, 2026 09:30 pm (GMT +13) (12 km E)
All earthquakes at Okataina (Tarawera)

Pocdol Mountains volcano (Luzon Island): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 4 hours ago. The quake, which might be volcanic in origin, was located at a depth of 15.00 km depth at 10 km distance N from the volcano.
Earthquake details:
2.1 quake Philippine Sea, 13 km south of Batan Island, Philippines, Oct 18, 2026 04:39 pm (GMT +8) (10 km N)
All earthquakes at Pocdol Mountains
The Pocdol Mountains are a 225 km² volcanic complex in southern Luzon, also known as the Bacon-Manito Complex. No eruption is known from approximately the past 11,700 years, although a fumarole field with a geyser occurs near the summit.

Santiaguito volcano (Guatemala): 2 earthquakes up to magnitude 3.8

2 earthquakes occurred near (under) the volcano during 51 minutes, the last being recorded quake 8 hours ago. Hypocenter depths ranged between 22.00 and 10.00 km.
Earthquake details:
3.8 quake 16 km south of Quetzaltenango, Departamento de Quetzaltenango, Guatemala, Oct 17, 2026 09:53 pm (GMT -6) (8 km SE)
2.3 quake 16 km southwest of Quetzaltenango, Departamento de Quetzaltenango, Guatemala, Oct 17, 2026 10:45 pm (GMT -6) (6 km WSW)
All earthquakes at Santiaguito
Santiaguito is a lava-dome complex growing inside the great crater formed by Santa María’s catastrophic 1902 eruption in Guatemala. Its continuing eruption began in 1922 and includes lava extrusion, ash explosions, pyroclastic flows and lahars.
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/381078/Volcano-earthquake-report-2026-10-18.html